You can see three almost identical images below. Can you spot the odd one out from them?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

What makes this number unique: 8,549,176,320?

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

There was a strange boy who was born before his father. How can this be possible?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

What does this mean?

CCCCCCC

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Count the number of triangles in the given picture.